Image forming apparatus that discriminates an image portion and

Details Image forming apparatus that discriminates an image portion and Image forming apparatus that discriminates an image portion and

1991-05-30

1992-10-20

Fuller, Benjamin R.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358462, 358 75, 346157, 355326, H04N 121, G03G 1501

Patent

active

051575078

ABSTRACT:
An image forming apparatus having a plurality of develolping units containing developer the colors of which are different from each other for forming a full-color image. In this image forming apparatus, a character portion of an original is distinguished from a picture portion thereof upon the scan of the original, and the image formation for the character portion is performed in a different developing condition from the developing condition in which the image formation for the picture portion is performed.

REFERENCES:
patent: 4903143 (1990-02-01), Sakamoto
patent: 4931875 (1990-06-01), Tadauchi
patent: 4974028 (1990-11-01), Enoguchi et al.
patent: 4990968 (1991-02-01), Kusuda
patent: 4996603 (1991-02-01), Kanemitsu et al.
patent: 5023662 (1991-06-01), Kusumoto et al.
patent: 5030996 (1991-07-01), Tajima et al.
patent: 5038176 (1991-08-01), Yokoyama et al.

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